https://phys.org/news/2019-03-facebook-ceo-hell-privacy.html

But Zuckerberg didn't suggest any changes to Facebook's core newsfeed-and-groups-based service, or to Instagram's social network, currently one of the fastest-growing parts of the company. That didn't sit well with critics.

"He's kind of pulled together this idea that the thing that matters most to people is privacy between peers and one-to-one communication, ignoring completely the idea that people also value their privacy from Facebook," said Forrester analyst Fatemeh Khatibloo.